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The Relational Model. Why Study the Relational Model?. Most widely used model. Vendors: IBM, Informix, Microsoft, Oracle, Sybase, etc. “Legacy systems” in older models E.G., IBM’s IMS Recent competitor: object-oriented model ObjectStore, Versant, Ontos - PowerPoint PPT Presentation

The Relational Data Model and Relational Database Constraints

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The Relational Model & Relational Algebra - Gordon College

The Relational Model and Relational Algebra

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The Relational Model and Relational Database Constraints

The Relational Model & Relational Algebra

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